Wire bending and cutting machine



P. BEGHETTI WIRE BENDING AND CUTTING MACHINE June 22 1926.

Filed August 18, 1924 UNITED s'mras; PAT T OFFICE.

PETER BEGHETTI, OF SAN FRANCISCO; CALIFORNIA- v This invention relates' to a wire bending .w nn mmmnc nn ourrmd magnum.

Application flled August 18,1 24. s ans. 732,663. g

and cutting machine.

In the construction of concrete a great amount 0 buildings f wire is requiredt this being due to the fact that wire anchors are extensively tie the concrete forms used and that Wire is employed to together and also to tie and secure the reinforcing rods and other members in place.

cut and bend the wire by hand as it is required. This materially slows down the work of assembling the. concrete forms and lacing and securing the reinforcing rods, and the cost of construction isthereby proportionately increased.

The object of the present inventionis to do away with the as much as possible by whereby the wire hand-cutting and bending providing a machine be'rapidly bent into may suitable shapes and out into lengths as re quired.

One form which my is exemplified in invention may assume the following description and illustrated in the accompanying drawings, in which- Fig. 1 is a perspective view of the wire bending and cutting machine.

Fig. 2 is a wire shapes obta cutting machine.

perspective view of one of the ined by the bending and Fig. 3 is a cross-section of the shear head. Flg. 4 is an enlarged cross-section on line 4-4 of Fig. 1.

7 Referring to the drawings in detail; and particularly to Fig.

1, A indicates in general a framecomprising a pair of base mein bers 2 tied together by Mounted on the base members standards 4. and members 2 are bars as indicated at 5.

a cross-plate 3. 2 is a pair of also carried by the base angularlv disposed brace Bearing members 6are carried by the upper ends of the standards and a shear at 7 is journalled therein. 7

The shear-head -head. generally indicated consists of a pair of plates 8 and 9, which are interspaced by means of blocks 10. The

shear-plate 11 and upper plate 8 supports a The end spac ng blocks car-rv shafts 13 which extend into=the bearings 6, and a trunnionlike support is thus provided for the shear-head which permits rotation ings. One of the "vided witha lian thereof in-itl e hearshaft. extensions 13 istprod-crank l4 and; this. serves The usual practice, is to ends as indicated at 32 the lower plate supports the function of manually rotating the shear--- 21, and secu'red'to each lever 'is a cutter bar or blade 22. Also secured to the shear-head;

adjacentthechannel bars 15 and 16 and on the inner side of the same, is a pair of-radiallydisposed angle-bars or arms 23 and 24. Slidably mounted thereon are bearing brackets 25. and suitably secured to each bearing bracket are right-angularly disposed forming heads 26 and 27 The forminglieads in this instance -consist ofsections of angleiron. i

The forming heads-together with the bearing brackets, are adjustable on the arms 23 and 24 and they 'maybe'moved in and out on the same, each forming head being provided with anarni 28. on the innerend of which is mounted'a spring-actuated locking pin 29. The basesection of the angle bars 23 and 24' is perforated at intervals, as shown at 30. and register with any perforation, thus permitting inward, and outward movementof the forming heads on the bars 23 and24. The end of the shear-head opposite the angle bars 23 and '24 isprovided'with a plate 31. This plate is slotted at opposite andjthese slots form guides for the levers 20 and 21. 'The'plate .31 also serves the function of a lock'to securel'the shear-head against rotation,

nalledfin the' standard 4. A secondary lever 34 is also"]'ournalle.d in thestandard 4, as

at 35; and a" chain 36 forms a connection be. tween this lever and either of the levers 20 "and 21. 1

p 7 p A link 37 is attachedto the upper end of the' chainfandithe chain may thus be readily eng'aged'or disengaged as required. The operation of the machine will befas follows: Byreferring to Fig. 2a section of "wire capable of beingbent and cut by tlie machine is illustrated; A wire of-this shape is usually employed for the purpose cityand 18. Pivthe lock-pins 29 may thus rotation,

shear-head and rotatable in unison thereat rightoutward movement of the bending heads with relation to the arms supporting the same and the shear-head, means for locking the bending heads against movement, aknife movable toward the shear-head to sever the wire, and means for locking the shear-head and the bending heads against rotation.

4. A wire bending and cutting machine comprising a frame, a shear-head journalled therein, means for rotating said head, means for locking the head against rotation, a pair of arms secured to the shear-head and rotatable in unison therewith, said arms being disposed at right-angles to the shearhead, bearing brackets slidably mounted on each arm, a wire bending head carried by each bearing bracket, means for securing the bearing brackets against sliding movement on the arms, and a knife movable toward the shear-head.

5. A wire bending and cutting machine comprising a frame, a shear-head journalled therein, means for rotating said head, means for locking the head against a pair of arms secured to the with, said arms being disposed angles to the shear-head, bearing brackets slidably mounted on each arm, a wire bending head carried by each bearing bracket, means for securing the bearing brackets against sliding movement on the arms, a pair of knives pivotally mounted on the shear-head and rotatable in unison with the same, and means-for locking the knives against movement about their pivots and in a right-angular position with relation to the shear-head. I

6. A wire bending and cutting machine comprising a frame, a shear-head journalled therein, means for rotating said head, 'means for locking'the head against IOl-zibiOlr, a pair of arms secured to the shear-head and rotatable in unison therewith, said arms being disposed at right-angles to the shearhead, bearing brackets slidably mounted on each arm, a wire bending head carried by each bearing bracket, means for securing the bearing brackets against sliding movement on the arms, a pair of knives pivotally mounted on the shear-head and rotatable in unison with the same. means for locking the knives againstj movement about their pivots and in a right-angular position with relation to the shear-head, and means for imparting a compound lever movement to the knives when released.

7. A wire bending and cutting machine comprising a reel, a shear-head disposed centrally thereof, said reel adapted to receive wire which is bent about the reel to form a. plurality of elongated loops, and means carried by the shear-head for severing the loops at opposite sides intermediate their ends. v

PETER BEGHETTI. 

